# 8087 Floating-Point Operations Explained

Intel's 8087 coprocessor enabled fast floating-point operations. It provided hundredfold speed boosts over 8086 for addition and subtraction. The implementation relies on shifting and overflow detection in dedicated hardware.

https://hackaday.com/2026/10/22/floating-point-addition-and-subtraction-on-intels-8087/

Image: https://hackaday.com/wp-content/uploads/2026/10/intel_8087_add_subtract_circuitry_ken_shirriff.jpg?w=800

Image: https://hackaday.com/wp-content/uploads/2026/10/intel_8087_add_subtract_circuitry_ken_shirriff.jpg

#floating #cpu #hardware #math

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Canonical URL: https://qwibbit.com/q15584

Created: 2026-10-22T11:55:09.133009+00:00

Last edited: 2026-10-22T11:55:09.133009+00:00

Board: 3

Origin: Syndicated

Original source: https://hackaday.com/2026/10/22/floating-point-addition-and-subtraction-on-intels-8087/